CN203374877U - Automatic air valve - Google Patents
Automatic air valve Download PDFInfo
- Publication number
- CN203374877U CN203374877U CN201320064650.3U CN201320064650U CN203374877U CN 203374877 U CN203374877 U CN 203374877U CN 201320064650 U CN201320064650 U CN 201320064650U CN 203374877 U CN203374877 U CN 203374877U
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- Prior art keywords
- cylinder
- air valve
- automatic air
- base
- wall
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Abstract
The utility model relates to an automatic air valve. The automatic air valve comprises an upper cover (1), a base plate (2) and an air sealing cushion (3). The center of the surface of the upper cover (1) is hollow. A cylinder (4) protrudes from the hollow portion around the upper cover (1) below the upper cover (1). An O-shaped sealing diameter (5) is arranged in the periphery direction along the inner wall of the cylinder (4) and on the inner wall of the cylinder (4). A through hole is arranged in the base plate (2). A protruding round pipe (10) is arranged around the upper portion of the base plate (2). A circle base plate protruding diameter (11) is arranged in the periphery direction along the outer wall of the cylinder (10). The cylinder (4) is in interference fit with the round pipe (10). A protruding platform (14) is arranged below the base plate (2). A circle baffle (15) is distributed in the periphery direction along the outer edge of the protruding platform (14). The air sealing cushion (3) is installed in an inner cavity formed by the cylinder (4) and the round pipe (10). The automatic air valve is simple in structure and capable of using air pressure to achieve the automatic sealing.
Description
Technical field
The utility model belongs to the Sealing technical field, particularly relates to a kind of automatic air valve.
Background technique
The sealing air valve is responsible for suction and the discharge of gas, traditional air valve is comprised of valve seat, valve block, spring, lift limiter etc., also some air valve is do not use spring and adopt manual rotary devices to carry out the locked of valve body, two kinds of above-mentioned structures, more complicated, can't reach the function be automatically locked, thereby need the sealing air valve of a kind of new structure of design.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of automatic air valve, with simplified structure, reduces production costs, and realizes automatic-sealed simultaneously.
The utility model solves the technological scheme that its technical problem adopts: a kind of automatic air valve is provided, comprises upper cover, base, airtight packing, cylinder, O type sealing footpath, plum blossom design, neck, packing ring plush copper, airtight packing external diameter, pipe, the protruding footpath of base, cylinder inner wall, vent, boss, baffle plate, described upper cover centre of surface hollow out, protrude a cylinder around upper cover center openwork part below upper cover, and on cylinder inner wall, along cylinder inner wall, one circle O type sealing footpath is circumferentially arranged; The base center is a through hole, the pipe of one protrusion is arranged around through hole above base, on circular tube external wall, along circular tube external wall, the one protruding footpath of circle base is circumferentially arranged, cylinder and pipe interference fit, it below base, is a boss, along the boss outer rim circumferentially be distributed with a circle baffle plate, in the inner chamber that cylinder and pipe form, airtight packing is installed.
Described upper cover centre of surface openwork part is plum blossom design.
Described cylinder is by the protruding footpath of the base interference fit of O type sealing footpath and pipe.
The internal diameter in described O type sealing footpath is less than the external diameter in the protruding footpath of base.
Described outer wall of boss hollow out, and the outer wall of boss openwork part is slit into several vents by arc minutes such as baffle plates.
Described airtight packing top is one cylindric, and airtight packing bottom is transitioned into a packing ring plush copper by neck, and the packing ring plush copper is positioned below boss through the center hole of boss.
Described packing ring plush copper is spherical shape.
The external diameter on the cylindric top of described airtight packing is greater than the internal diameter of cylinder inner wall.
Beneficial effect
The utility model is simple in structure, can utilize the pulling force of the neck of draught head and airtight packing to realize automatic-sealed, and the rebasing end of hermetic seal is because of the pulling force of negative pressure, outwards expand and form a circle bulge, make the hermetic seal pad form the shape of upper and lower two external drums, middle indent, realize and the swelling of base cylinder inner wall, reach positive confinement.
The accompanying drawing explanation
Fig. 1 is the utility model explosive view one.
Fig. 2 is the utility model explosive view two.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiments only are not used in restriction scope of the present utility model for the utility model is described.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims limited range equally.
As shown in Fig. 1～Fig. 2, a kind of automatic air valve, comprise upper cover 1, base 2, airtight packing 3, cylinder 4, O type sealing footpath 5, plum blossom design 6, neck 7, packing ring plush copper 8, airtight packing external diameter 9, pipe 10, the protruding footpath 11 of base, cylinder inner wall 12, vent 13, boss 14, baffle plate 15, described upper cover 1 centre of surface hollow out, protrudes a cylinder 4 around upper cover 1 center openwork part below upper cover 1, and on cylinder 4 inwalls, along cylinder 4 inwalls, one circle O type sealing footpath 5 is circumferentially arranged; Base 2 centers are a through hole, the pipe 10 of one protrusion is arranged around through hole above base 2, on pipe 10 outer walls, along pipe 10 outer walls, the one protruding footpath 11 of circle base is circumferentially arranged, cylinder 4 and pipe 10 interference fit, it below base 2, is a boss 14, along boss 14 outer rims circumferentially be distributed with a circle baffle plate 15, in the inner chamber that cylinder 4 and pipe 10 form, airtight packing 3 is installed.
Described upper cover 1 centre of surface openwork part is plum blossom design 6.
Described cylinder 4 is the protruding footpath of base 11 interference fit with pipe 10 by O type sealing footpath 5.
The internal diameter in described O type sealing footpath 5 is less than the external diameter in the protruding footpath 11 of base.
Described boss 14 outer wall hollow outs, and boss 14 outer wall openwork parts are slit into several vents 13 by arc minutes such as baffle plates 15.
Described airtight packing 3 tops are one cylindric, the cylindric top of airtight packing 3 is installed on the platform of cylinder inner wall 12, airtight packing 3 bottoms are transitioned into a packing ring plush copper 8 by neck 7, packing ring plush copper 8 is positioned below boss 14 through the center hole of boss 14, and the length before neck 7 does not elongate is less than the distance of cylinder inner wall 12 platforms to boss 14 planes.。
Described packing ring plush copper 8 is spherical shape.
The external diameter on described airtight packing 3 cylindric tops is greater than the internal diameter of cylinder inner wall 12.
Claims (7)
1. an automatic air valve, comprise upper cover (1), base (2), it is characterized in that: described upper cover (1) centre of surface hollow out, protrudes a cylinder (4) around upper cover (1) center openwork part below upper cover (1), and on cylinder (4) inwall, along cylinder (4) inwall, one circle O type sealing footpath (5) is circumferentially arranged; Base (2) center is a through hole, the pipe (10) of one protrusion is arranged around through hole above base (2), on pipe (10) outer wall, along pipe (10) outer wall, the one protruding footpath of circle base (11) is circumferentially arranged, cylinder (4) and pipe (10) interference fit, below base (2), be a boss (14), along boss (14) outer rim circumferentially be distributed with a circle baffle plate (15), in the inner chamber that cylinder (4) and pipe (10) form, airtight packing (3) is installed.
2. a kind of automatic air valve according to claim 1 is characterized in that: described cylinder (4) is the protruding footpath of base (11) interference fit with pipe (10) by O type sealing footpath (5).
3. a kind of automatic air valve according to claim 1 and 2 is characterized in that: the internal diameter in described O type sealing footpath (5) is less than the external diameter in the protruding footpath of base (11).
4. a kind of automatic air valve according to claim 1 is characterized in that: described boss (14) outer wall hollow out, and boss (14) outer wall openwork part is slit into several vents (13) by arc minutes such as baffle plates (15).
5. a kind of automatic air valve according to claim 1, it is characterized in that: described airtight packing (3) top is one cylindric, airtight packing (3) bottom is transitioned into a packing ring plush copper (8) by neck (7), and packing ring plush copper (8) is positioned below boss (14) through the center hole of boss (14).
6. a kind of automatic air valve according to claim 5, it is characterized in that: described packing ring plush copper (8) is spherical shape.
7. a kind of automatic air valve according to claim 5, it is characterized in that: the external diameter on the cylindric top of described airtight packing (3) is greater than the internal diameter of cylinder inner wall (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320064650.3U CN203374877U (en) | 2013-02-04 | 2013-02-04 | Automatic air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320064650.3U CN203374877U (en) | 2013-02-04 | 2013-02-04 | Automatic air valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374877U true CN203374877U (en) | 2014-01-01 |
Family
ID=49837406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320064650.3U Expired - Fee Related CN203374877U (en) | 2013-02-04 | 2013-02-04 | Automatic air valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374877U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115165A (en) * | 2013-02-04 | 2013-05-22 | 慈溪市美德工贸有限公司 | Automatic air valve |
-
2013
- 2013-02-04 CN CN201320064650.3U patent/CN203374877U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103115165A (en) * | 2013-02-04 | 2013-05-22 | 慈溪市美德工贸有限公司 | Automatic air valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20160204 |